aslparser.y revision 271440 
1%{
2/******************************************************************************
3 *
4 * Module Name: aslparser.y - Master Bison/Yacc input file for iASL
5 *
6 *****************************************************************************/
7
8/*
9 * Copyright (C) 2000 - 2014, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions, and the following disclaimer,
17 *    without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 *    substantially similar to the "NO WARRANTY" disclaimer below
20 *    ("Disclaimer") and any redistribution must be conditioned upon
21 *    including a substantially similar Disclaimer requirement for further
22 *    binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 *    of any contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#include "aslcompiler.h"
46#include "acpi.h"
47#include "accommon.h"
48
49#define _COMPONENT          ACPI_COMPILER
50        ACPI_MODULE_NAME    ("aslparse")
51
52/*
53 * Global Notes:
54 *
55 * October 2005: The following list terms have been optimized (from the
56 * original ASL grammar in the ACPI specification) to force the immediate
57 * reduction of each list item so that the parse stack use doesn't increase on
58 * each list element and possibly overflow on very large lists (>4000 items).
59 * This dramatically reduces use of the parse stack overall.
60 *
61 *      ArgList, TermList, Objectlist, ByteList, DWordList, PackageList,
62 *      ResourceMacroList, and FieldUnitList
63 */
64
65void *                      AslLocalAllocate (unsigned int Size);
66
67/* Bison/yacc configuration */
68
69#define static
70#undef malloc
71#define malloc              AslLocalAllocate
72#undef alloca
73#define alloca              AslLocalAllocate
74#define yytname             AslCompilername
75
76#define YYINITDEPTH         600             /* State stack depth */
77#define YYDEBUG             1               /* Enable debug output */
78#define YYERROR_VERBOSE     1               /* Verbose error messages */
79#define YYFLAG              -32768
80
81/* Define YYMALLOC/YYFREE to prevent redefinition errors  */
82
83#define YYMALLOC            malloc
84#define YYFREE              free
85%}
86
87/*
88 * Declare the type of values in the grammar
89 */
90%union {
91    UINT64              i;
92    char                *s;
93    ACPI_PARSE_OBJECT   *n;
94}
95
96/*
97 * These shift/reduce conflicts are expected. There should be zero
98 * reduce/reduce conflicts.
99 */
100%expect 86
101
102/*! [Begin] no source code translation */
103
104/*
105 * The M4 macro processor is used to bring in the parser items,
106 * in order to keep this master file smaller, and to break up
107 * the various parser items.
108 */
109m4_define(NoEcho)
110
111/* Token types */
112
113m4_include(asltokens.y)
114
115/* Production types/names */
116
117m4_include(asltypes.y)
118%%
119
120/* Production rules */
121
122m4_include(aslrules.y)
123%%
124
125/*! [End] no source code translation !*/
126
127/* Local support functions in C */
128
129m4_include(aslsupport.y)
130